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Class 123/41.37 - Hollow piston rod


Subclass of Class 123 - Internal-combustion engines
Definition: Cooling means wherein the piston rod is hollow or has passages
No. of patents: 11
Last issue date: 11/21/2006


NumberTitleIssue Date
7137370Gearbox comprising two rotatable disks which are arranged inside each other and are connected by means of a swash plate
A gear arrangement has two turntables nested or arranged concentrically in one another, and interconnected with one another via a swashplate. The gear arrangement preferably is used for adjusting the angle of rotation of the camshaft relative to the angle of rotatio...
11/21/2006
7082906Piston cooling system
The piston engine cooling system includes multiple pistons rotatably coupled to a crankshaft. Each piston includes a piston head defining a cooling chamber therein, and a connecting rod coupled to the piston head. The connecting rod includes a connecting rod inlet c...
08/01/2006
5427067Piston and a connecting rod assembly
An assembly including a piston having a crown surface, a bottom surface, and a skirt projecting therefrom and defining therewith a cavity; a cup-shaped housing retained in the cavity and having a bottom wall engaging the bottom surface and a side wall eng...
06/27/1995
4724800Ringless piston engine
An non-lubricated, ringless piston engine without a conventional heat exchange system having a cross-head guide for guiding and restraining the piston within a cylinder of a two-stroke engine. The piston-bore radial clearance gap is maintained during engi...
02/16/1988
4662319Structurally lightened piston utilizable especially in an internal combustion engine
The piston for an internal combustion engine, consisting of a piston head (1) and a body (2) of monobloc or two-piece construction, the head bearing upon the body (2) via at least two circular bearing surfaces (4, 5), the body (2) having a bearing part (6...
05/05/1987
4515110Rod bearing lubrication for two-cycle engines
This invention is a lubrication pumping means contained within one or more reciprocating rods to assure lubrication of the crankpin rod bearing and the wrist pin bearing during operation of a two-cycle internal combustion engine. The invention teaches a m...
05/07/1985
4502421Rod lubrication means for two-cycle internal combustion engines
This invention is a unique lubrication means contained within a hollow shank of a reciprocating rod including a valve means to maintain a supply of lubricant within the shank of the rod to assure proper lubrication of both the crankpin and wrist pin rod b...
03/05/1985
4466387Lubrication means for a two-cycle internal combustion engine
This invention is a lubrication pumping means contained within one or more reciprocating rods to assure lubrication of the crankpin rod bearing and the wrist pin bearing during operation of a two-cycle internal combustion engine....
08/21/1984
4363293Piston for a reciprocating piston machine, particularly an internal combustion engine
A piston for a reciprocating piston machine, of the type swivelled by means of a piston pin to the associated connecting rod small and consisting of two members constituting the piston head and the piston skirt, assembled together by stud bolts. The centr...
12/14/1982
3973393Reciprocating internal combustion engine with continuous combustion
A reciprocating internal combustion engine of the type having a continuous combustion. The combustion chamber must be connected with the cylinders of the engine by suitable transfer ports for supplying the gaseous medium to the cylinders and for dischargi...
08/10/1976
3930472Composite oil-cooled piston for an internal combustion engine
The piston head is hollowed for a central coolant cavity and for an outer annular coolant cavity separated by a ridge by which the head is supported on the piston body. An outer shoulder also supports the skirt part of the head on the piston body. The pis...
01/06/1976
 
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